Privacy-friendly, in-browser utilities
ZIDOOKA Tools
Fast, minimal tools for daily tasks. Most tools run entirely in your browser, so your files and text stay on your device.
Kits
Short, step-by-step workflows that chain multiple tools.
Quickly check duration/bitrate and prep audio or video before sending it to clients or editors.
Detect the delimiter, find broken rows, and sanity-check CSV structure without uploading anything.
Parse campaign URLs, label parameters by platform, and export a neat CSV for QA and reporting.
Make links look natural and privacy-friendly by removing tracking parameters before sharing.
Pick a timer based on your workflow: focus blocks, intervals, EMOM/AMRAP, or fixed HIIT sessions.
Tune by pitch, find tempo by tapping, and practice with a clean click track.
Quick utilities for combining PDFs, turning tables into images, and sanity-checking structured data.
Fast date/time calculations for planning, deadlines, and scheduling (days, weeks, hours, minutes).
Japanese auspicious day calendar (2026–2028): Taian, Ichiryumanbai, Tensha, Tora-no-hi, and more with purpose-based filtering.
Timers & Workout
7Minimal timers for focus and training.
Simple Hourglass
Just an hourglass. 3, 5, 15, 30, 60 min.
Pomodoro Timer
25 min work / 5 min break productivity timer.
EMOM Timer
Every Minute On the Minute. Simple beep every minute.
AMRAP Timer
As Many Rounds As Possible. Just a big countdown.
Interval Timer
Simple Work/Rest loop. No rounds limit.
Simple Tabata Timer
4-minute Tabata workout (20s/10s). No setup.
Simple HIIT Timer
10-minute HIIT workout (30s/30s). No setup.
Date Calculators
4Quickly calculate dates and times.
Everyday Calculators
3Quick converters for daily life.
PDF & Document Tools
1Manipulate documents in your browser.
Media Tools
7Process audio and video files locally.
Image Responsive Preview
Preview how one image scales on smartphone and tablet viewports.
Image + Audio to Video
Create a video from an image and audio file (max 5 min).
Media Duration Analyzer
Check audio & video length instantly. No upload.
Media Bitrate Checker
Check codec, bitrate, and sample rate locally.
Audio Trim (Simple Cut)
Cut audio locally. No upload. No effects.
Video to Audio Extractor
Extract audio from video locally. No upload.
Mosaic Image Tool
Apply uniform mosaic/pixelation to images. Batch process up to 10 files.
Music Tools
4Simple tools for musicians and audio.
Text & Data Utilities
18Clean, inspect, and transform text and data.
Remove ChatGPT UTM
Remove utm_source=chatgpt.com and other AI tracking params.
File Size Unit Converter
Convert file sizes between KB, MB, GB, and more instantly.
Microwave Wattage Converter
Convert cooking times between 500W, 600W, 800W, and 1500W microwaves.
AI Text Cleaner
Clean up AI output for Slack, Teams, and email.
Revision Review
Accept or reject edits to finalize a revised document.
Text Diff
Compare two texts with line/word/char diff modes. Side-by-side or unified view.
Base64 Tool
Encode text or files to Base64, or decode Base64 back to text.
URL Parameter Cleaner
Remove tracking parameters from shared links.
Ad URL to CSV Parser
Extract tracking parameters from ad URLs to CSV.
Markdown Table to Image
Convert markdown tables into PNG, JPG, or CSV instantly.
SVG Preview & Download
Preview SVG and download it instantly as SVG, PNG, or JPG.
CSV Column Count
Count rows and columns in CSV data.
CSV Delimiter Detector
Detect the delimiter used in CSV data.
CSV to ICS Converter
Convert schedule CSV files into calendar .ics files with validation.
CSV/TSV Batch Converter
Batch-convert CSV/TSV with delimiter/newline/BOM presets and ZIP output.
SQLite Viewer (Local)
Open a local SQLite DB, run SELECT queries, and export CSV/JSON.
Broken CSV Checker
Find rows with incorrect column counts.
JSON Shape Inspector
Validate JSON syntax and inspect structure details.
Japanese Calendar / 暦ツール
2Auspicious day calendar based on traditional Japanese almanac.
Japanese Text Tools / 日本語テキスト
5Small utilities for cleaning Japanese text.
Text Cleaner (改行・空白・タブ削除)
Remove newlines/spaces/tabs and view diffs (browser-only).
Login-Free Tategaki Editor (ログイン不要縦書きエディタ)
SaaS風トップからエディタ本体へ。縦書きプレビュー付きで、入力をブラウザ内に自動保存できます。
Daily Report Time Calculator (日報用 時間計算)
作業と移動時間を合計して、終了時刻（順算）や必要な開始時刻（逆算）を計算します。
D'Hondt Calculator (ドント方式)
ドント方式・Sainte-Lague法・Hare余り方式の議席配分を並列比較できます。
Lean Canvas Planner (リーンキャンバス作成ツール)
9ブロックで事業計画を整理し、ブラウザ保存・JSON保存ができます。
UTM & Marketing / マーケティングツール
3UTM parameter tools and QR code generator in Japanese.
A note on privacy
The suite is designed for quick, local-first workflows. For tools that accept files, processing happens in your browser. That means no uploads and no accounts. (Ads and basic analytics may still load to keep the service running.)